Loading probelms

When i want to go into my world most times it exits me out immediatly or the software shuts down.

Steps to Reproduce:

1. [Step 1]
2. [Step 2]???
3. [Step 3]

Observed Results:
Immediatly quit world or software

Expected result
Load the world

Screenshots/Videos attached: [please attach an image or short video]

*Notes:
Fix this